} = true; //GDI is supported everywhere
public ScreenInfo Initialize(ComponentOptions componentOptions)
{
var options = componentOptions.To <GdiOptions>();
var screen = Screen.AllScreens[options.Monitor.Value];
_screenBounds = screen.Bounds;
_currentImage = new Bitmap(screen.Bounds.Width, screen.Bounds.Height, PixelFormat.Format24bppRgb);
_screenDeviceContext = NativeMethods.CreateDC("DISPLAY", null, null, IntPtr.Zero);
if (_screenDeviceContext == IntPtr.Zero)
{
throw new InvalidOperationException("Creating device context for display failed.");
}
return(new ScreenInfo(screen.Bounds.Width, screen.Bounds.Height));
}
public ScreenInfo Initialize(ComponentOptions componentOptions)
{
var options = componentOptions.To <DesktopDuplicationOptions>();
var monitor = options.Monitor.Value;
Adapter1 adapter;
try
{
using (var factory = new Factory1())
adapter = GetBestAdapter(factory);
}
catch (SharpDXException e)
{
throw new InvalidOperationException("Could not find the specified graphics card adapter.", e);
}
Output output;
using (adapter)
{
_captureDevice = new Device(adapter);
try
{
output = adapter.GetOutput(monitor);
}
catch (Exception e)
{
throw new InvalidOperationException("Could not find the specified output device.", e);
}
}
using (output)
using (var output1 = output.QueryInterface <Output1>())
{
_outputDesc = output.Description;
_textureDesc = new Texture2DDescription
{
CpuAccessFlags = CpuAccessFlags.Read,
BindFlags = BindFlags.None,
Format = Format.B8G8R8A8_UNorm,
Width = GetWidth(_outputDesc.DesktopBounds),
Height = GetHeight(_outputDesc.DesktopBounds),
OptionFlags = ResourceOptionFlags.None,
MipLevels = 1,
ArraySize = 1,
SampleDescription = { Count = 1, Quality = 0 },
Usage = ResourceUsage.Staging
};
try
{
_deskDupl = output1.DuplicateOutput(_captureDevice);
}
catch (SharpDXException ex) when(ex.ResultCode.Code == ResultCode.NotCurrentlyAvailable.Result.Code)
{
throw new InvalidOperationException(
"There is already the maximum number of applications using the Desktop Duplication API running, please close one of the applications and try again.");
}
return(new ScreenInfo(_textureDesc.Width, _textureDesc.Height));
}
}